CN104395393A - Polyamine-vulcanizable highly saturated nitrile rubber composition - Google Patents
Polyamine-vulcanizable highly saturated nitrile rubber composition Download PDFInfo
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- CN104395393A CN104395393A CN201380026970.2A CN201380026970A CN104395393A CN 104395393 A CN104395393 A CN 104395393A CN 201380026970 A CN201380026970 A CN 201380026970A CN 104395393 A CN104395393 A CN 104395393A
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
- C08L15/005—Hydrogenated nitrile rubber
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/331—Polymers modified by chemical after-treatment with organic compounds containing oxygen
- C08G65/332—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof
- C08G65/3322—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof acyclic
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/36—Silica
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
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- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
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- C09K2200/0612—Butadiene-acrylonitrile rubber
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Abstract
A polyamine-vulcanizable highly saturated nitrile rubber composition having: an alpha,beta-ethylenically unsaturated nitrile monomer unit; a diene monomer unit; an alpha,beta-ethylenically unsaturated dicarboxylic acid monoester monomer unit; and an alpha,beta-ethylenically unsaturated carboxylic ester monomer unit other than that mentioned previously. The polyamine-vulcanizable highly saturated nitrile rubber composition has superior low-temperature resistance in the presence of a polycyclic aromatic compound, and is formed by blending 4-31 parts by weight of an aliphatic carboxylic acid diester of a polyalkylene glycol with 100 parts by weight of a polyamine-vulcanizable highly saturated nitrile rubber that has an iodine number of 120 or less and an alpha,beta-ethylenically unsaturated nitrile monomer unit content of 21.0-23.0% by weight, preferably 21.0-22.5% by weight, more preferably 21.0-22.0% by weight. This polyamine-vulcanizable highly saturated nitrile rubber composition can be used as a vulcanizable molding material for a seal material that is suitable for use even in environments such as those in which the seal material is immersed in a fuel oil that contains a polycyclic aromatic compound.
Description
Technical field
The present invention relates to polyamines cure highly saturated nitrile rubber composition.More specifically, even if relate to the polyamines cure highly saturated nitrile rubber composition that can be used as at the vulcanization forming material that impregnated in the sealing material that also can be applicable to use under environment such in the oil fuel containing polynuclear aromatic compound etc.
Background technology
Owing to requiring the characteristics such as oil-proofness, thermotolerance, winter hardiness in intake manifold gasket purposes, so viton, NBR, organo-silicone rubber etc. are used as its vulcanization forming material.In these vulcanization forming materials, viton has problem in cold property and cost, and organo-silicone rubber has the problem of facile hydrolysis, for NBR, found that compression permanent set characteristics is excessively poor, be not suitable for hot environment under the problem of seal applications.
Find that the polynuclear aromatic compound or derivatives thereof with more than 2 phenyl ring can invade the position to using oil fuel sealing material, detrimentally affect is caused to sealing material.
Past, the diesel oil fuel automobile using light oil etc. to have the fuel of the high cut of boiling point is only had to be considered to cause such detrimentally affect, but discovered in recent years, uses the automobile of other fuel, also can produce the detrimentally affect caused by polynuclear aromatic compound for Fuel Petroleum automobile etc.As its reason, the fuel that the purifying of crude oil is insufficient when preparing fuel can be listed and come into the market and the possibility of selling.
In addition, known polynuclear aromatic compound also can generate when the incomplete combustion of organic compound, from diesel oil fuel automobile using naphthalene, acenaphthene etc. as main component, from Fuel Petroleum automobile using fluoranthene, pyrene etc. as main component, various polynuclear aromatic compound is discharged (with reference to non-patent literature 1) as waste gas.That is, when automobile fuel is blown back the position using sealing material, possibility sealing material being exposed to the polynuclear aromatic compound generated because of burning is also considered.
In addition, in order to improve the oilness of fuel, also known to polynuclear aromatic compound (the bicyclic aromatic compound such as such as naphthalene, acenaphthene, fluorenes or their alkyl substituents, aromatic substance more than three rings such as anthracene, phenanthrene or their alkyl substituents) make an addition to technology in oil fuel (with reference to patent documentation 1 ~ 2), also exist by containing the possibility as additive.
Like this, the no matter kind of fuel, can say that oil fuel sealing material is exposed to the possibility of polynuclear aromatic compound large.
The balance of the oil-proofness of hydrogenated nbr, cold property and cost is excellent, is therefore suitable as the sealing material of common oil fuel purposes.But, find the following problem of hydrogenated nbr: damage its winter hardiness (cold property) due to the contact with the polynuclear aromatic compound in oil fuel.In order to solve the such problem occurred in hydrogenated nbr, there is the method for the acrylonitrile content reduced in hydrogenated nbr.But, because the oil-proofness of the few hydrogenated nbr of acrylonitrile content is poor, so be unsuitable in the use being often exposed to the such position of oil fuel; On the other hand, the sclerosis that the hydrogenated nbr that acrylonitrile content is high is caused by polynuclear aromatic compound is serious, cannot avoid the remarkable reduction of sealing property.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 11-50067 publication
Patent documentation 2: Japanese Unexamined Patent Publication 9-40975 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2008-179671 publication
Patent documentation 4: Japanese Unexamined Patent Publication 2010-106113 publication
Patent documentation 5:WO 2005/103143
Patent documentation 6:WO 2008/038465
Non-patent literature
Non-patent literature 1: Ring border health care Network ラ イ テ リ ア (environmental health standards) 202 phase (1998).
Summary of the invention
Invent problem to be solved
The object of the invention is to, even if provide the polyamines cure highly saturated nitrile rubber composition that can be used as at the vulcanization forming material that impregnated in the sealing material that also can be applicable to use under environment such in the oil fuel containing polynuclear aromatic compound etc.
Solve the means of problem
Object of the present invention is reached by following polyamines cure highly saturated nitrile rubber composition: the aliphatic carboxylic acid diester compound of the polyalkylene glycol of polyamines cure highly saturated nitrile rubber blending 4 ~ 31 weight part of every 100 weight parts forms, the polyamines cure highly saturated nitrile rubber composition of the winter hardiness excellence under polynuclear aromatic compound exists, wherein said polyamines cure highly saturated nitrile rubber has α, β-olefinically unsaturated nitriles monomeric unit, diene-based monomer unit, α, β-ethylenically unsaturated dicarboxylic mono monomeric unit and other α, β-ethylenically unsaturated carboxylic acids ester monomeric unit, α, β-olefinically unsaturated nitriles monomer unit content is 21.0 ~ 23.0 % by weight, preferably 21.0 ~ 22.5 % by weight, more preferably 21.0 ~ 22.0 % by weight, and iodine number is less than 120.
The effect of invention
Because polyamines cure highly saturated nitrile rubber composition of the present invention is will except α, β-olefinically unsaturated nitriles monomeric unit, diene-based monomer unit and α, beyond β-ethylenically unsaturated dicarboxylic mono monomeric unit, there is other α, when the polyamines cure highly saturated nitrile rubber of β-ethylenically unsaturated carboxylic acids ester monomeric unit is used as the vulcanization forming material of the oil fuel sealing material containing polynuclear aromatic compound, impregnated in the cold property still showing excellence after in the oil fuel containing polynuclear aromatic compound, and the swelling paracril sealing material being still limited in realistic scale of oil fuel, therefore when sealing material is used as intake manifold gasket etc., effectively can prevent the reduction etc. of the sealing property as sealing material.
Embodiment
There is α, β-olefinically unsaturated nitriles monomeric unit, diene-based monomer unit, α, β-ethylenically unsaturated dicarboxylic mono monomeric unit and other α as any composition, β-ethylenically unsaturated carboxylic acids ester monomeric unit, α, β-olefinically unsaturated nitriles monomer unit content is 10 ~ 60 % by weight, preferably 15 ~ 55 % by weight, particularly preferably 20 ~ 50 % by weight (such as 34 % by weight), iodine number be less than 120 polyamines cure highly saturated nitrile rubber be such as recorded in patent documentation 3 ~ 4.
If α, β-olefinically unsaturated nitriles monomeric unit is the α with itrile group, β-alefinically unsaturated compounds is then without particular determination, include, for example out vinyl cyanide, its alpha-position is the alpha-halogen vinyl cyanide of chlorine, bromine, its alpha-position is the methacrylonitrile etc. of alkyl, preferably uses vinyl cyanide or methacrylonitrile.
In the present invention, this α, β-olefinically unsaturated nitriles monomeric unit can be 21.0 ~ 23.0 % by weight, preferably 21.0 ~ 22.5 % by weight, more preferably 21.0 ~ 22.0 % by weight in polyamines cure highly saturated nitrile rubber.In addition, in following softening agent mixing proportion, owing to finding trend of the improvement effect of its resistance to fuel oiliness (winter hardiness under polynuclear aromatic compound existence) containing polynuclear aromatic compound of nitrile content influence in the polyamines cure highly saturated nitrile rubber of use, so specify α like this, the ratio of β-olefinically unsaturated nitriles monomeric unit.
Diene-based monomer unit is by C such as 1,3-butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, 1,3-pentadiene, Isosorbide-5-Nitrae-pentadiene, Isosorbide-5-Nitrae-hexadienes
4~ C
12conjugation or unconjugated diene monomers, preferred conjugate diene monomer, more preferably 1,3-butadiene derive.
These diene-based monomer unit can with the C such as ethene, propylene, 1-butylene, 4-methyl-1-pentene, 1-hexene, 1-octene as any composition
2~ C
12alpha-olefines monomeric unit together use.
Diene-based monomer unit or they and alpha-olefines monomeric unit can be 20 ~ 78.8 % by weight, preferably 30 ~ 78.7 % by weight, more preferably 40 ~ 78.4 % by weight in polyamines cure paracril.If use diene-based monomer unit etc. with less ratio, then there is the anxiety of the caoutchouc elasticity reduction of vulcanization of rubber thing; On the other hand, if too much, then there is the possibility of infringement thermotolerance or chemical-resistant stability.
As α, β-ethylenically unsaturated dicarboxylic mono monomeric unit, the C of toxilic acid, fumaric acid, citraconic acid, methylene-succinic acid etc. can be listed
1~ C
10, preferred C
2~ C
6mono alkyl ester, C
5~ C
12, preferred C
6~ C
10monocycle alkyl ester, C
6~ C
12, preferred C
7~ C
10list (alkyl-substituted cycloalkyl) ester etc., more preferably can list single propyl diester of toxilic acid, fumaric acid or citraconic acid or single n-butyl, particularly preferably use toxilic acid list n-butyl.
These α, β-ethylenically unsaturated dicarboxylic mono monomeric unit can be 0.1 ~ 20 % by weight, more preferably 0.2 ~ 15 % by weight, particularly preferably 0.5 ~ 10 % by weight in polyamines cure paracril.If use α, β-ethylenically unsaturated dicarboxylic mono monomeric unit with less ratio, then the carboxyl required for amine sulfuration is not enough, and the tensile stress of sulfide reduces; On the other hand, if use with more ratio, then cause that the coking stability of cure acrylonitrile rubber composite worsens, the resistance to fatigue reduction etc. of sulfide.
In the present invention, the polyamines cure highly saturated nitrile rubber also outside α, β-ethylenically unsaturated dicarboxylic mono monomeric unit with other α, β-ethylenically unsaturated carboxylic acids ester monomeric unit can be used, as such monomeric unit, can list and there is C
1~ C
8alkyl (methyl) alkyl acrylate monomer units, there is C
2~ C
8(methyl) alkoxyalkyl acrylate monomeric unit of alkoxyalkyl and the diester monomeric unit corresponding with above-mentioned α, β-ethylenically unsaturated dicarboxylic mono at least one.The existence of such monomeric unit effectively can play the winter hardiness (cold property by the expression of TR-10 value) in containing the oil fuel of polynuclear aromatic compound after dipping.
These α, β-ethylenically unsaturated carboxylic acids ester monomeric unit in polyamines cure highly saturated nitrile rubber can less than 30 % by weight, preferably less than 20 % by weight, particularly preferably 0.1 ~ 10 % by weight ratio use.
As the polyamines cure highly saturated nitrile rubber comprising these various monomeric units, its iodine number can be used to be less than 120, preferably less than 80, further preferably less than 25, particularly preferably less than 15 rubber.If the iodine number that the saturation ratio that display causes because of hydrogenation reduces uses higher value, then damage the ozone resistance of sulfide.
There is above each monomeric unit (i.e. α, β-olefinically unsaturated nitriles monomeric unit, diene-based monomer unit, α, β-ethylenically unsaturated dicarboxylic mono monomeric unit and other α, β-ethylenically unsaturated carboxylic acids ester monomeric unit) as required monomeric unit, and the polyamines cure highly saturated nitrile rubber that iodine number is less than 120 can be abridged, [XHNBR] represents, in addition other α of non-copolymerization, the rubber of β-ethylenically unsaturated carboxylic acids ester monomeric unit also can abridge [XHNBR] represent, in fact directly can use commercially available product.Such as, as the former polyamines cure highly saturated nitrile rubber comprising 4 membered copolymers, Zeon Corporation goods Zetpol 3700, Zetpol 3610 etc. can directly be used; In addition, as the polyamines cure highly saturated nitrile rubber comprising 3 membered copolymers of the latter, same companies goods Zetpol 2510 etc. can directly be used.
These polyamines cure highly saturated nitrile rubbers can be as described in patent documentation 5 by the sulfuration of polyamine compounds vulcanizing agent.As polyhydric amine compounds, hexamethylene-diamine can be listed, its carbamate, benzoic ether or phenylacrolein affixture, the aliphatie diamines such as diamino modified siloxane, 4,4 '-methylenebiscyclohexylamine or the ester ring type diamines such as its phenylacrolein affixture, two (4-amino-3-methyldicyclohexyl) methane, 4, 4 '-methylene dianiline, p, p '-ethylidene p-diaminodiphenyl, m-or p-phenylenediamine, 3, 4 '-diaminodiphenyl oxide, 4, 4 '-diaminodiphenyl oxide, 4, 4 '-diaminodiphenylsulfone(DDS), 4, 4 '-(m-or p-phenylene diisopropylidene) p-diaminodiphenyl, 2, two [4-(4-amino-benzene oxygen) phenyl] propane of 2-, 2, two [4-(3-amino-benzene oxygen) phenyl] propane of 2-, two [4-(4-amino-benzene oxygen) phenyl] sulfone, two [4-(3-amino-benzene oxygen) phenyl] sulfone, 4, 4 '-bis-(4-amino-benzene oxygen) xenol, two [4-(4-amino-benzene oxygen) phenyl] ether, 2, two [4-(4-amino-benzene oxygen) phenyl] HFC-236fa of 2-, 1, two (4-amino-benzene oxygen) benzene of 4-, 1, the aromatic diamines such as two (4-amino-benzene oxygen) benzene of 3-, preferred use aromatic diamine, preferably use para-orientation thing aromatic diamine further.These polyhydric amine compounds vulcanizing agents can the ratio of XHNBR 4 yuan of base polymers about 0.1 ~ 5 weight part, preferably about 0.2 ~ 4 weight part of every 100 weight parts use, if use with less ratio, sulfuration is insufficient, can not get enough compression permanent set characteristics.
In order to improve the compression permanent set characteristics of XHNBR 4 yuan of base polymers, also can be suitable for adopting: with diamine compound vulcanizing agent together also with 1, 8-diazabicylo [5.4.0] hendecene-7 (salt) or 1, the method of 5-diazabicylo [4.3.0] nonene (salt) vulcanization accelerator, further also by the method for mercaptobenzimidazole class except this curing system, and by the method for aromatic diamine compound vulcanizing agent and guanidine compound vulcanization aid, the method etc. of benzothiazolyl sulfinyl amine compounds vulcanization accelerator is also used further in this curing system.
In XHNBR 4 yuan of base polymers, the aliphatic carboxylic acid diester compound of the polyalkylene glycol represented using following general formula can be added as softening agent:
R
1COO(C
nH
2nO)
mCOR
2
R
1, R
2: be C independently of one another
1~ C
14alkyl or alkenyl
The integer of n:2 ~ 4
The integer of m:2 ~ 30.
The aliphatic carboxylic acid diester compound of such polyalkylene glycol is recorded in patent documentation 6, can exemplify following compound.After compound title, in bracket, write the commercially available product trade(brand)name corresponding with it.It should be noted that, respectively by polyoxyethylene glycol referred to as PEG, by polypropylene glycol referred to as PPG; In addition, by polytetramethylene glycol referred to as PTMG.
PEG (MW200) two heptanoate
PEG (MW300) two-2-ethylhexanoate (Adeka Corporation goods RS700)
PEG (MW600) two-2-ethylhexanoate (with company goods RS735)
PEG (MW1000) dicaprate
PEG (MW300) dicaprate
PEG (MW600) heptanoate/laurate (equal amount of mixture)
PPG (MW400) two heptanoate
PTMG (MW600) two-2-ethylhexanoate
PEG/PPG equal amount of mixture (MW600) two heptanoate.
Describe in patent documentation 6 using the metal-salt of the aliphatic carboxylic acid diester compound of polyalkylene glycol and sulfonamide compounds together blending use as crystallization promoter in vibrin.
In addition, speak of patent documentation 3 ~ 4 and difference of the present invention, although mention XHNBR 4 yuan of base polymers in the generality of these patent documentations is recorded, in their each embodiment, all use XHNBR 3 yuan of base polymers; In addition, also the aliphatic carboxylic acid diester compound of not mentioned use polyalkylene glycol as softening agent.In addition, although also carried out the oil fuel C dip test of XHNBR 3 yuan of base polymers in patent documentation 3, and the oil fuel that non-usage contains polynuclear aromatic compound carries out, and its mensuration is also only carry out as swell test.
The aliphatic carboxylic acid diester compound of polyalkylene glycol can every 100 weight parts XHNBR 4 yuan of base polymer 4 ~ 31 weight parts, preferably 4 ~ 30 weight parts, preferably the ratio of 9 ~ 30 weight parts uses further.Under lower usage ratio, can not get the improvement effect of the resistance to fuel oiliness containing polynuclear aromatic compound as object of the present invention; On the other hand, even if use with higher ratio, also can not get the improvement effect of the resistance to fuel oiliness containing polynuclear aromatic compound.
Nitrile content in this XHNBR 4 yuan of base polymers can be the nitrile content in NBR base polymer blend when using two or more NBR base polymer.As NBR base polymer of more than two kinds, not only can be the blend of XHNBR 4 yuan of base polymers, also can be the blend of XHNBR 4 yuan of base polymers and other NBR base polymer (such as XHNBR 3 yuan of base polymers etc.).In this case, the blending ratio of XHNBR 3 yuan of base polymers can be less than 30 % by weight.
The preparation of XHNBR 4 yuan of polymer compositions is carried out by the following method: except above each composition, usually other blending agent (the such as carbon black adopted when being suitable for being added on NBR base polymer, the tougheners such as white carbon black or weighting agent, lubricant, processing aid etc.), use closed kneader, rollers etc. are mediated, sulfuration based on these polyamine compounds is the cure conditions according to polyamines cure NBR, by at about 100 ~ 200 DEG C, preferably about 130 ~ 200 DEG C, preferred about 150 ~ 200 DEG C further, about 30 second ~ 5 hours, the preferably press vulcanization of about about 3 ~ 10 minutes and about 150 ~ 200 DEG C of optionally carrying out, the oven cure (post cure) of about 0.5 ~ 24 hour is carried out.
As toughener or weighting agent, in order to be intended to improve the painted of visibility when producing, preferably use white carbon black.As white carbon black, can in the scope not damaging rubber acidity, such as with the ratio of XHNBR 4 yuan of base polymers about 10 ~ 200 weight part of every 100 weight parts, preferably about 10 ~ 150 weight parts, use at least one in silicon-dioxide, clay, diatomite, talcum powder, barium sulfate, calcium carbonate, magnesiumcarbonate, Calucium Silicate powder, colourless various metal oxides, mica etc.Wherein, preferably use specific surface area (BET method) for about 30 ~ 110m
2/ g, preferably about 30 ~ 60m
2the silicon-dioxide of/g.
Embodiment
Then, embodiments of the invention are described.
Comparative example 1
In above each composition, open roller is transferred to after being mediated by each composition kneader beyond sulphur removal agent and vulcanization accelerator, add after vulcanizing agent and vulcanization accelerator mediate wherein, carry out the press vulcanization of 180 DEG C, 10 minutes and the oven cure (post cure) of 180 DEG C, 5 hours, the following object mensuration is carried out to the sulfide of the test sheet obtained.
Low temperature properties test (TR test) after [test A] resistance to oil fuel dipping containing polynuclear aromatic compound:
To octane-iso: be added with in the mixed solution of ethanol=74:26 (volume ratio) in the experimental liquid of the phenanthrene of 8 % by weight, after test sheet sulfide being flooded 70 hours in 60 DEG C, in 100 DEG C of dryings 24 hours, place at ambient temperature after 24 hours, measure its TR-10 (DEG C) value, this value is less than-25 DEG C and is evaluated as ◎ ,-24 ~-23 DEG C are evaluated as zero,-22 ~-21 DEG C are evaluated as △, more than-20 DEG C be evaluated as ×.
[test B] fuel oil resistance swell test:
Measure in 60 DEG C will test sheet sulfide in the mixed solution of fuel B:EtOH=74:26 (volume ratio), flood 70 hours after volume change.
It should be noted that, fuel B is octane-iso: the mixed solution of toluene=7:3 (volume ratio).
By the volume change of mensuration for be evaluated as ◎ below+64% ,+65 ~+69% are evaluated as zero, and+70 ~+74% are evaluated as △, more than+75% be evaluated as ×.
[test C] low temperature elasticity recovers test (TR test):
Measure TR-10 (DEG C) value, this value is evaluated as ◎ for less than-30 DEG C, and-25 ~-29 DEG C are evaluated as zero, exceed-25 DEG C be evaluated as ×.
Normality physical property:
Elongation when mensuration hardness (A type hardness tester meter hardness, maximum value), tensile strength, cut-out.
Compression set:
For O type ring (G25), measure in the value of 120 DEG C of placements after 70 hours.
It should be noted that, in above-mentioned various test, the preparation of sample and measuring method are based on the JIS standard involved by vulcanized rubber and thermoplastic elastomer.
The JIS K6250 2006 corresponding with ISO 23529: rubber-physical test method general rule
The JIS K6253 1997 corresponding with ISO 48: the measuring method of hardness
The JIS K6258 2003 corresponding with ISO 1817: the measuring method of resistance to fluidity
The JIS K6261 2006 corresponding with ISO 812: the measuring method of cold property
The JIS K6251 2010 corresponding with ISO 37: the measuring method of tensile properties
The JIS K6262 2006 corresponding with ISO 815: the measuring method of the compression set under normal temperature, high temperature and low temperature
The JIS B2401 2012:O type ring corresponding with ISO 3601-1.
Embodiment 1 ~ 6, comparative example 2 ~ 9
In comparative example 1, with 4 metaclass XHNBR Zetpol 3700 together or replace it to use:
Zetpol 3610:XHNBR 4 yuan of base polymers (CN content is 21%)
Zetpol 2510:XHNBR 3 yuan of base polymers (CN content is 36%);
In addition, plasticising dosage also carries out various change and uses.
The result obtained in above each embodiment and comparative example and the polymkeric substance of use and the amount (unit: weight part) of each composition of softening agent are together illustrated in following table 1 ~ 2.
Result according to table 1 ~ 2, may be provided in by the present invention the TR-10 value tested in A is less than-23 DEG C, preferably less than-25 DEG C, the volume change tested in B be below+69%, preferably below+64% simultaneously, and the TR-10 value in test C be less than-25 DEG C, preferably less than-30 DEG C in containing the oil fuel of polynuclear aromatic compound, flood the rear polyamines cure highly saturated nitrile rubber composition showing the cold property of excellence.
Claims (9)
1. polyamines cure highly saturated nitrile rubber composition, it is that the aliphatic carboxylic acid diester compound of the polyalkylene glycol of polyamines cure highly saturated nitrile rubber blending 4 ~ 31 weight part of every 100 weight parts forms, winter hardiness in containing the oil fuel of polynuclear aromatic compound after dipping is excellent, wherein, described polyamines cure highly saturated nitrile rubber has α, β-olefinically unsaturated nitriles monomeric unit, diene-based monomer unit, α, β-ethylenically unsaturated dicarboxylic mono monomeric unit and other α, β-ethylenically unsaturated carboxylic acids ester monomeric unit, α, β-olefinically unsaturated nitriles monomer unit content is 21.0 ~ 23.0 % by weight, and iodine number is less than 120.
2. the polyamines cure highly saturated nitrile rubber composition of claim 1, wherein, use α, β-olefinically unsaturated nitriles monomer unit content is the polyamines cure highly saturated nitrile rubber of 21.0 ~ 22.5 % by weight.
3. the polyamines cure highly saturated nitrile rubber composition of claim 1, wherein, use α, β-olefinically unsaturated nitriles monomer unit content is the polyamines cure highly saturated nitrile rubber of 21.0 ~ 22.0 % by weight.
4. the polyamines cure highly saturated nitrile rubber composition of claim 1, wherein, the ratio be used in less than 30 % by weight in polyamines cure highly saturated nitrile rubber has and α, the polyamines cure highly saturated nitrile rubber of other α, β that β-ethylenically unsaturated dicarboxylic mono monomeric unit together uses-ethylenically unsaturated carboxylic acids ester monomeric unit.
5. the polyamines cure highly saturated nitrile rubber composition of claim 4, wherein, α, β-ethylenically unsaturated carboxylic acids ester monomeric unit is for having C
1~ C
8alkyl alkyl acrylate monomer units or alkyl methacrylate monomer unit, there is C
2~ C
8the alkoxyalkyl acrylate monomeric unit of alkoxyalkyl or methacrylic alkyl ester monomer unit and α, β-ethylenically unsaturated dicarboxylic diester monomeric unit at least one.
6. the polyamines cure highly saturated nitrile rubber composition of claim 1, wherein, as the aliphatic carboxylic acid diester compound of polyalkylene glycol, uses with general formula R
1cOO (C
nh
2no)
mcOR
2the compound represented, wherein, R
1, R
2be separately C
1~ C
14alkyl or alkenyl, n is the integer of 2 ~ 4, and m is the integer of 2 ~ 30.
7. the polyamines cure highly saturated nitrile rubber composition any one of claim 1,2,3 or 4, it is as the vulcanization forming material that impregnated in containing the sealing material in the oil fuel of polynuclear aromatic compound.
8. sealing material, it is shaped by the polyamines cure highly saturated nitrile rubber composition hardening of claim 7 and obtains, and uses impregnated in the oil fuel containing polynuclear aromatic compound.
9. the sealing material of claim 8, it is used as intake manifold gasket.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012118193 | 2012-05-24 | ||
| JP2012-118193 | 2012-05-24 | ||
| PCT/JP2013/060502 WO2013175878A1 (en) | 2012-05-24 | 2013-04-05 | Polyamine-vulcanizable highly saturated nitrile rubber composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104395393A true CN104395393A (en) | 2015-03-04 |
| CN104395393B CN104395393B (en) | 2016-11-16 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380026970.2A Expired - Fee Related CN104395393B (en) | 2012-05-24 | 2013-04-05 | Polyamines cure highly saturated nitrile rubber compositions |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9403972B2 (en) |
| EP (1) | EP2857448B1 (en) |
| JP (1) | JP5850149B2 (en) |
| CN (1) | CN104395393B (en) |
| WO (1) | WO2013175878A1 (en) |
Cited By (3)
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|---|---|---|---|---|
| CN105705569A (en) * | 2013-11-28 | 2016-06-22 | 日本瑞翁株式会社 | Nitrile group-containing highly-saturated copolymer rubber composition and crosslinked rubber |
| CN107849314A (en) * | 2015-07-15 | 2018-03-27 | 日本瑞翁株式会社 | Nitrile rubber composition and rubber cross thing |
| CN110023343A (en) * | 2016-12-09 | 2019-07-16 | 阿朗新科德国有限责任公司 | Nitrile-diene-carboxylate copolymer of hydrogenation |
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| US9404003B2 (en) * | 2012-05-24 | 2016-08-02 | Nok Corporation | Polyamine curable, highly saturated nitrile rubber composition |
| EP3124533B1 (en) * | 2014-03-25 | 2018-01-03 | Zeon Corporation | Crosslinking rubber composition and crosslinked rubber production method |
| KR20170023855A (en) * | 2014-06-26 | 2017-03-06 | 니폰 제온 가부시키가이샤 | Crosslinked rubber material for liquefied gas seal |
| KR102533408B1 (en) * | 2015-09-17 | 2023-05-16 | 니폰 제온 가부시키가이샤 | Nitrile rubber composition, crosslinkable nitrile rubber composition and crosslinked rubber |
| JP6996094B2 (en) * | 2017-03-17 | 2022-01-17 | 住友ゴム工業株式会社 | Rubber composition for tires and pneumatic tires |
| WO2018180207A1 (en) * | 2017-03-30 | 2018-10-04 | 日本ゼオン株式会社 | Crosslinkable rubber composition and crosslinked rubber object |
| JP2019048913A (en) * | 2017-09-07 | 2019-03-28 | Nok株式会社 | Rubber composition for oil seal and oil seal |
| JP2020128737A (en) | 2019-02-08 | 2020-08-27 | 株式会社マーレ フィルターシステムズ | Seal component for engine intake system and seal structure for engine intake system |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2857448B1 (en) | 2017-09-06 |
| US9403972B2 (en) | 2016-08-02 |
| JPWO2013175878A1 (en) | 2016-01-12 |
| US20150175784A1 (en) | 2015-06-25 |
| CN104395393B (en) | 2016-11-16 |
| JP5850149B2 (en) | 2016-02-03 |
| EP2857448A4 (en) | 2016-02-10 |
| WO2013175878A1 (en) | 2013-11-28 |
| EP2857448A1 (en) | 2015-04-08 |
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